Finding the Fourth Proportional to 7,205,674.96, 9,943,742.89 and 3,942,442.70
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Solution
The fourth proportional to 7,205,674.96, 9,943,742.89 and 3,942,442.70 is: 5,440,522.47
Step by Step Solution
- Step 1: Write the proportion equation
7,205,674.96 : 9,943,742.89 = 3,942,442.70 : x - Step 2: Convert to fraction form
7,205,674.96/9,943,742.89 = 3,942,442.70/x - Step 3: Cross multiply
7,205,674.96x = 9,943,742.89 × 3,942,442.70 - Step 4: Simplify right side
7,205,674.96x = 39,202,636,559,855.77 - Step 5: Solve for x
x = 39,202,636,559,855.77/7,205,674.96 - Step 6: Final answer
x = 5,440,522.47
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.